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2.5mm trrs to dual xlr cable
2.5mm trrs to dual xlr cable
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Old 14th January 2019, 07:13 PM   #11
Galu is offline Galu  Scotland
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File Type: jpg balanced headphone out.jpg (35.0 KB, 75 views)
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Old 15th January 2019, 02:33 AM   #12
conanski is offline conanski  Canada
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How does that work without a ground reference?
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Old 15th January 2019, 05:33 AM   #13
PRR is offline PRR  United States
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A proper Balance signal does not need a ground reference.
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Old 15th January 2019, 06:42 PM   #14
Galu is offline Galu  Scotland
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Why does a balanced signal not require a ground reference?

An ideal balanced audio receiver is a differential amplifier. It works by measuring the difference between its two inputs, and calling that difference the signal. "Ground" is totally irrelevant.

A ground connection is not necessary for a balanced signal though a screen can reduce interference from external signals as well as radiated interference to other signals. If a screen is present it is often connected at one end only to eliminate ground loops.

Source: What makes a "balanced" audio signal? - Electrical Engineering Stack Exchange
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Old 8th July 2019, 03:13 PM   #15
saebasan is offline saebasan
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Default Balanced output diagrams for Sabaj da3

Would like to DIY a 2.5mm jack TRRS to double XLR cable for my Sabaj Da3 on the balanced output.

No information in the package of the DAC, nor on the website.
Not quite sure about the output diagram pinout.
Are all the chi-fi the same? Fiio, Sabaj...?

Is someone here, who knows the diagram of the balanced output???
from Tip to r1,r2,S:


Thank you.
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Old 19th July 2019, 08:22 PM   #16
Galu is offline Galu  Scotland
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I have just spotted your post saebasan. Better late than never!

The diagram in post #11 would support your first suggested sequence.

I would assume that this is the standard sequence.
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Old 21st July 2019, 05:10 PM   #17
lgreen is offline lgreen  United States
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For 2.5mm TRRS Post #11 is correct, 2.5mm TRRS balanced signals are always like this.
Retired from DIY (2010) but still lurking now and again. My DIY audio projects- PartTimeProjects.com.
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